CN107368011B - Multiple spot series connection tightly stops signal condition monitoring circuit - Google Patents
Multiple spot series connection tightly stops signal condition monitoring circuit Download PDFInfo
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- CN107368011B CN107368011B CN201710717423.9A CN201710717423A CN107368011B CN 107368011 B CN107368011 B CN 107368011B CN 201710717423 A CN201710717423 A CN 201710717423A CN 107368011 B CN107368011 B CN 107368011B
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- tightly
- condition monitoring
- stop
- button
- relay
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/04—Programme control other than numerical control, i.e. in sequence controllers or logic controllers
- G05B19/048—Monitoring; Safety
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Automation & Control Theory (AREA)
- Keying Circuit Devices (AREA)
- Remote Monitoring And Control Of Power-Distribution Networks (AREA)
Abstract
Present invention discloses a kind of series connection of multiple spot tightly to stop signal condition monitoring circuit, n are tightly stopped button and are sequentially connected in series, wherein first tightly stops the connection direct current supply line of button normally-closed contact connecting terminal 1, each button normally-closed contact connecting terminal 2 that tightly stops is connected by a tight normally opened contact for stopping condition monitoring relay with the corresponding control coil for tightly stopping condition monitoring relay, and this tightly stops condition monitoring relay control coil connecting terminal A2 and is then connected with direct current zero curve.When region occurs tightly to stop failure, tightly stop signal condition by multiple spot series connection and monitor circuit and can understand the series connection of region multiple spot in time tightly to stop which tightly stops button in route or which section circuit question produces this and tightly stops.After tightly stopping troubleshooting, by touch tightly stop condition monitoring reset button make tightly to stop condition monitoring reset relay in short-term it is electric, thus make multiple spot series connection tightly stop each in signal condition monitoring circuit tight to stop condition monitoring relay and be in obtain electric self-insurance state again.
Description
Technical field
The present invention relates to technical field of electrical automation control.
Background technique
For industrial production factory of certain scale, especially metallurgical Rolling production factory, in process of production inevitably meeting
Various productions and equipment fault or accident occurs, and (such as hydraulic cylinder supplies for some productions and equipment fault or accident
Injection tubing, tandem mill piling of steel etc.), loss further expansion caused by these failures or accident, usually needs in order to prevent
Failure or accident generation area inner part or all devices are wanted to carry out parking and power operation in time, for this purpose, electrical in factory
It is provided with region in automatic control system and tightly stops control unit.
Tightly stop control unit and mainly tightly stopped button (or switch) by each in region and tightly stopped relay institute in factory region
Composition, region is tightly stopped control unit electrical block diagram and is illustrated in fig. 2 shown below.In order to ensure the reliability of control is tightly stopped in region,
Generally use it is each in region tightly stop the concatenated mode of button normally-closed contact and tightly stop relay to control, it is each in region tight to stop button
In the case where not touching, relay will tightly be stopped in region to be in obtain electricity condition, be touched when tightly stopping button any one of in region
When, relay will tightly be stopped in region thus to be issued area equipment in power failure state and tightly stop control instruction.Tightly stop button in usual region
Have the function of mechanical caging, i.e., tightly stop button once be touched, the state after touching will be mechanically locked until artificial solution
Lock, as a result, in the case where control unit normal work is tightly stopped in region, maintenance personnel can be readily determined in region and be touched
Dynamic tightly stops button.But when there are poor contact of contacts when tightly stopping button in region, in this case, when this tightly stops
When the periphery of button has vibration to occur, which may instantaneously become very big, thus cause
Tightly stop relay electric-loss in region, and region tightly stops control unit and accidentally feel nervous to stop control instruction；In addition, when push-button contact string is tightly stopped in region
When connection connecting line is in like disconnected rather than disconnected state for some reason, above-mentioned similar phenomenon equally can also occur.
Be in view of above-mentioned two situations region tightly stop button it is untouched in the case where generation area tightly stop relay
Power loss phenomenon, maintenance personnel is difficult urgent to stop specifically determining that moment occurs in which point in the concatenated route of push-button contact as a result,
It interrupts and causes tightly to stop relay moment power loss.
Summary of the invention
Accurately determine which point has occurred instantaneous interruption and causes in the background technique of being solved of the invention in the case of two kinds
The problem of tightly stopping relay moment power loss realizes that a kind of multiple spot series connection tightly stops the monitoring circuit of signal condition, maintains easily personnel
Tightly stop button to problematic in time or tightly stop connection line and repair.
To achieve the goals above, the technical solution adopted by the present invention are as follows: multiple spot series connection tightly stops signal condition monitoring circuit,
The n normally-closed contacts for tightly stopping button are sequentially connected in series, wherein first tightly stops the connection direct current supply line of button normally-closed contact connecting terminal 1
Road, it is characterised in that: each button normally-closed contact connecting terminal 2 that tightly stops tightly stops condition monitoring relay by one
Normally opened contact is connected with the corresponding control coil for tightly stopping condition monitoring relay, and this tightly stops condition monitoring relay control line
Circle connecting terminal A2 is then connected with direct current zero curve.
One tightly stop condition monitoring reset button and the state of emergency monitoring and reset relay control coil series connection after be connected to
Between the direct current supply line and direct current zero curve, the normally opened contact of the state of emergency monitoring and reset relay be equipped with n and
Respectively with each tightly to stop the normally opened contact of condition monitoring relay in parallel.
It is an advantage of the current invention that tightly stopping signal condition monitoring by multiple spot series connection when region occurs tightly to stop failure
Circuit can understand the series connection of region multiple spot in time and tightly stop which tightly stops button in route or which section circuit question produces this and tightly stops.
After tightly stopping troubleshooting, tightly stopping condition monitoring reset button by touch makes tightly to stop condition monitoring reset relay in short-term
It is electric, thus make the multiple spot series connection tightly stop signal condition monitoring circuit in it is each tightly stop condition monitoring relay be in again it is electric from
Guarantor's state returns to tightly stop monitor state again in this way, multiple spot series connection tightly stops signal condition monitoring circuit.
Detailed description of the invention
Below to width attached drawing every in description of the invention expression content and figure in label be briefly described:
Fig. 1 is that multiple spot of the present invention series connection tightly stops signal condition monitor circuit structure schematic diagram；
Fig. 2 is that control unit electrical block diagram is tightly stopped in prior art region；
Label in above-mentioned figure is equal are as follows: 1, tightly stop button；2, tightly stop condition monitoring relay；3, tightly stop condition monitoring reset
Button；4, state of emergency monitoring and reset relay.
Specific embodiment
As shown in Figure 1, multiple spot series connection tightly stops in signal condition monitoring circuit, n (quantity is arbitrarily set as needed) tight
Stopping button 1 to be sequentially connected in series, i.e., the connecting terminal 2 for tightly stopping button 1 connects next connecting terminal 1 for tightly stopping button 1 by conducting wire,
Wherein the first connecting terminal 1 for tightly stopping button 1 connects direct current supply line.
The connecting terminal 2 for each tightly stopping button 1 tightly stops condition monitoring relay 2 by one and connects direct current zero curve, i.e.,
Each tightly stop 2 control coil connecting terminal A2 of condition monitoring relay to be connected with direct current 24V zero curve (i.e. M line), and control line
The circle end connecting terminal A1 is connected to monitored tight and stops 1 wiring of button after then connect by a normally opened contact with this relay
At terminal 2, and the concatenated normally opened contact is in parallel with a normally opened contact for tightly stopping condition monitoring reset relay.
One tightly stop condition monitoring reset button 3 and 4 control coil of the state of emergency monitoring and reset relay series connection after connect
Between the direct current supply line and direct current zero curve, the normally opened contact of state of emergency monitoring and reset relay 4 is equipped with n and divides
It is not in parallel with each normally opened contact for tightly stopping condition monitoring relay 2.
In this way, tightly stopping condition monitoring reset button by touching in the case where region is without signal generation is tightly stopped, make each tight
Stop condition monitoring relay 2 to obtain electric and entrance to obtain electric self-insurance state, so that region is tightly stopped status monitor circuit entrance and tightly stop supervising
Control state.When region 1# tightly stops that button 1 (PBJT1) is touched or this tightly stops button 1 tightly deactivated normally-closed contact moment contacts
It is bad or when this tightly stops 1 upper end series circuit of button and occurs that instantaneous touch is bad and thus initiation area tightly stops the actuating of relay,
Multiple spot series connection tightly stops each in signal condition monitoring circuit (as shown in figure 1 above) tightly to stop condition monitoring relay 2 and will be in moment
Power loss self-insurance state；When region 2# tightly stops that button 1 (PBJT2) is touched or this tightly stops button 1 tightly deactivated normally-closed contact moment goes out
Existing poor contact or this tightly stop the series circuit that button 1 tightly stops between button 1 to 1# and occur that instantaneous touch is bad and thus trigger area
When the actuating of relay is tightly stopped in domain, multiple spot series connection tightly stops 1# in signal condition monitoring circuit and tightly stops condition monitoring relay 2
(KJT1) electricity condition will be kept as, and remaining is each that tightly power loss self-insurance state will be in moment by stopping condition monitoring relay 2.
And so on, when region n# tightly stops that button 1 (PBJTn) is touched or this tightly stops the tightly deactivated normally-closed contact wink of button 1
Between there is poor contact or this tightly stops the series circuit that button 1 tightly stops between button 1 to n-1# instantaneous touch occur bad and thus
When initiation area tightly stops the actuating of relay, multiple spot series connection tightly stops 1#~n-1# in signal condition monitoring circuit and tightly stops condition monitoring
Relay 2 will be kept as electricity condition, and n# tightly stops condition monitoring relay 2 moment to be in power loss self-insurance state.Set by us
The monitoring circuit that a kind of multiple spot series connection of meter tightly stops signal condition rolls big H profile steel furnace area in Ma Gangsan steel and tightly stops control system
Use is put into system, practical effect is fine.
The present invention is exemplarily described above in conjunction with attached drawing, it is clear that the present invention implements not by aforesaid way
Limitation, as long as the improvement for the various unsubstantialities that the inventive concept and technical scheme of the present invention carry out is used, or without changing
It is within the scope of the present invention into the conception and technical scheme of the invention are directly applied to other occasions.
Claims (1)
1. multiple spot series connection tightly stops signal condition monitoring circuit, the n normally-closed contacts for tightly stopping button are sequentially connected in series, wherein first tightly stops
Button normally-closed contact connecting terminal 1 connects direct current supply line, it is characterised in that: each described tightly to stop button normally-closed contact wiring
Terminal 2 passes through a tight normally opened contact for stopping condition monitoring relay and the corresponding control line for tightly stopping condition monitoring relay
Circle is connected, and this tightly stops condition monitoring relay control coil connecting terminal A2 and is then connected with direct current zero curve；
One tightly stop to be connected to after condition monitoring reset button and the series connection of state of emergency monitoring and reset relay control coil it is described
Between direct current supply line and direct current zero curve, the normally opened contact of the state of emergency monitoring and reset relay is equipped with n and difference
With each tightly to stop the normally opened contact of condition monitoring relay in parallel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710717423.9A CN107368011B (en) | 2017-08-21 | 2017-08-21 | Multiple spot series connection tightly stops signal condition monitoring circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710717423.9A CN107368011B (en) | 2017-08-21 | 2017-08-21 | Multiple spot series connection tightly stops signal condition monitoring circuit |
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| Publication Number | Publication Date |
|---|---|
| CN107368011A CN107368011A (en) | 2017-11-21 |
| CN107368011B true CN107368011B (en) | 2019-10-11 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710717423.9A Active CN107368011B (en) | 2017-08-21 | 2017-08-21 | Multiple spot series connection tightly stops signal condition monitoring circuit |
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| CN (1) | CN107368011B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109885126B (en) * | 2019-03-21 | 2020-08-21 | 马鞍山钢铁股份有限公司 | Control system for preventing misoperation of emergency stop device |
| CN113263962B (en) * | 2021-06-28 | 2023-03-03 | 南京国电南自轨道交通工程有限公司 | Rail transit emergency power-off system |
| CN113793481B (en) * | 2021-08-17 | 2023-01-24 | 三一汽车制造有限公司 | Emergency stop safety protection system and concrete pump truck |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2789816Y (en) * | 2005-01-25 | 2006-06-21 | 上海大隆机器厂 | Applied circuit of sudden stop state releasing condition |
| CN201494978U (en) * | 2009-08-01 | 2010-06-02 | 中煤第三建设（集团）有限责任公司 | Fault detector of safety control circuit of mine temporary hoister |
| CN201854006U (en) * | 2010-10-15 | 2011-06-01 | 江苏扬力集团有限公司 | Control system for safe and instant stop of press |
| CN102902211A (en) * | 2012-09-28 | 2013-01-30 | 烟台宝钢钢管有限责任公司 | Method for preventing malfunction of emergency stop and quick stop signals in control system |
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| CN107368011A (en) | 2017-11-21 |
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Address after: 243003 intellectual property department, technology center, No. 8 Hunan West Road, Yushan, Ma'anshan, Anhui Applicant after: Ma'anshan Iron and Steel Co., Ltd. Address before: 243003 intellectual property department, technology center, No. 8 Hunan West Road, Ma'anshan, Anhui Applicant before: Ma'anshan Iron and Steel Co., Ltd. |
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| CB02 | Change of applicant information |
Address after: 243003 8 Jiuhua Road, Yushan, Ma'anshan, Anhui Applicant after: Ma'anshan Iron and Steel Co., Ltd. Address before: 243003 intellectual property department, technology center, No. 8 Hunan West Road, Yushan, Ma'anshan, Anhui Applicant before: Ma'anshan Iron and Steel Co., Ltd. |
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